Illinois

Storm History: LaSalle County, Illinois

518 episodes, 935 events since 1955

Every storm the National Weather Service has filed in LaSalle County, Illinois: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
935
Deaths
13
Injuries
95
Damage
$100 million
Episodes
518

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over LaSalle County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Tornado3041177$86 million
Hail16802$1.1 million
Thunderstorm Wind11600$170,000
Flash Flood10407$6.7 million
Flood7200$5.1 million
Winter Storm4300
High Wind2000$360,000
Drought1700
Extreme Cold/Wind Chill1300
Heavy Snow1200
Winter Weather1000
Funnel Cloud900
Excessive Heat900
Cold/Wind Chill700
Strong Wind700$19,000
Blizzard610
Ice Storm600$2,000
Lightning407$2,000
Heat301
Heavy Rain200
Frost/Freeze100
Dense Fog111
Dust Storm100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in LaSalle County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in LaSalle CountyEvery warning in LaSalle County since 1986Every county in Illinois

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.